QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

Earthquake near Heber City, UT

USGS: 1 km ESE of Heber City, Utah

55 km (34 mi) SE of Salt Lake City, UT · 34 km (21 mi) NE of Orem, UT

4:35 pm MST, Jan 29, 2016 · · 9.2 km deep · released about 16 lb of TNT

Every earthquake near Heber City Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Wasatch County 27 kmSalt Lake County 48 kmUtah County 48 kmSummit County 55 kmMorgan County 67 kmDuchesne County 85 kmDavis County 90 kmWeber County 95 kmUinta County 112 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
4:35 pm MST on 29 January 2016 ()
Where
in Heber City, UT · earthquakes near Heber City
Magnitude
M 1.8 (ml)
Depth
9.2 km below the surface
Felt
no reports yet
Nearest
Wasatch County, 27 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3896 days ago

A magnitude 1.8 earthquake was recorded in Heber City, UT, at 4:35 pm MST on 29 January 2016 (23:35 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Daniel, Midway, Francis, Park City, Kamas, Snyderville.

How big was it?

This earthquake released about 16 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 970,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 680,000× the energy of this one
  3. Around the size people start to feel M 3.0 61× the energy of this one
  4. This earthquake M 1.8 about 16 lb of TNT

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.3 Near Salt Lake City, Utah · 41 km WNW of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 40.5023, -111.3952. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Wasatch County, UT 27 km (17 mi) SE earthquakes near Wasatch County
Salt Lake County, UT 48 km (30 mi) WNW earthquakes near Salt Lake County
Utah County, UT 48 km (30 mi) SSW earthquakes near Utah County
Summit County, UT 55 km (34 mi) NE earthquakes near Summit County
Morgan County, UT 67 km (42 mi) NNW earthquakes near Morgan County
Duchesne County, UT 85 km (53 mi) ESE earthquakes near Duchesne County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

59 earthquakes have been recorded within 50 km since this one.

  1. 1.6 1 km SSE of Bluffdale, Utah
  2. 1.7 1 km SE of Bluffdale, Utah
  3. 2.5 2 km S of Bluffdale, Utah
  4. 2.2 1 km S of Bluffdale, Utah
  5. 1.7 0 km S of Bluffdale, Utah
  6. 1.9 1 km SSW of Bluffdale, Utah
  7. 1.6 11 km WSW of Vineyard, Utah
  8. 1.8 2 km S of Bluffdale, Utah
  9. 1.6 2 km S of Bluffdale, Utah
  10. 1.6 1 km S of Bluffdale, Utah
  11. 1.9 1 km S of Bluffdale, Utah
  12. 1.6 2 km S of Bluffdale, Utah
  13. 1.8 1 km SSE of Bluffdale, Utah
  14. 2.4 2 km S of Bluffdale, Utah
  15. 1.6 2 km SSE of Bluffdale, Utah

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.